IAA RAS IAA Minor Planet Database

185702 (1998 HK3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3002429039 ± 1.05e-07
Semi-major axis (a)1.8281033897 AU ± 8.14e-09
Inclination (i)24.69535276° ± 1.43e-05
Long. of Asc. Node (Ω)27.07958027° ± 1.28e-05
Arg. of Perihelion (ω)267.63340906° ± 2.62e-05
Mean Anomaly (M)356.05859320° ± 2.36e-05
Mean Motion (n)0.3987595941°/day ± 2.66e-09
Perihelion dist (q)1.27922832 AU ± 1.92e-07
Aphelion dist (Q)2.37697846 AU ± 1.93e-07
Orbital Period2.47173058 yr ± 1.65e-08
Physical Parameters
H (abs. magnitude)18.10
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.974″
Uncertainty0
Orbit TypeAmor
MOID0.488196 AU
Observations Used875
Oppositions16
Arc Total1998-2025
First Observation Used1998-04-20
Last Observation Used2025-03-19
Observations (1387)
Date Type RA Dec Mag Band Observatory
2018-09-08 17:44:41 s 1 +138103.33 4 +185469.31 0.03 – C57
2018-09-08 19:14:41 S 01 18 30.667 -46 52 18.52 – V C57
2018-09-08 19:14:41 s 1 +136069.15 9 +191799.92 0.84 – C57
2018-09-08 19:44:41 S 01 18 25.306 -46 51 58.00 – V C57
2018-09-08 19:44:41 s 1 +135370.58 6 +193881.22 0.813 – C57
2018-09-08 20:14:41 S 01 18 20.966 -46 51 30.46 – V C57
2018-09-08 20:14:41 s 1 +134662.07 1 +195948.13 0.826 – C57
2018-09-08 21:44:41 S 01 18 06.338 -46 50 06.11 – V C57
2018-09-08 21:44:41 s 1 +132478.69 1 +202062.90 0.192 – C57
2018-09-08 22:14:41 S 01 18 01.903 -46 49 39.11 – V C57
2018-09-08 22:14:41 s 1 +131732.20 6 +204072.63 0.443 – C57
2018-09-08 23:44:41 S 01 17 46.858 -46 48 16.16 – V C57
2018-09-08 23:44:41 s 1 +129439.05 5 +210016.81 0.015 – C57
2018-09-09 00:14:41 S 01 17 42.511 -46 47 53.16 – V C57
2018-09-09 00:14:41 s 1 +128657.31 6 +211970.00 0.141 – C57
2018-09-09 03:14:41 S 01 17 13.524 -46 45 07.16 – V C57
2018-09-09 03:14:41 s 1 +123795.48 7 +223396.09 0.337 – C57
2018-09-09 03:44:41 S 01 17 09.470 -46 44 42.83 – V C57
2018-09-09 03:44:41 s 1 +122957.98 9 +225251.99 0.117 – C57
2018-09-09 05:44:41 S 01 16 50.830 -46 42 49.46 – V C57
2018-09-09 05:44:41 s 1 +119535.40 2 +232538.81 0.942 – C57
2018-09-09 06:44:41 S 01 16 41.249 -46 41 56.04 – V C57
2018-09-09 06:44:41 s 1 +117782.38 6 +236100.77 0.017 – C57
2018-09-09 09:14:41 S 01 16 16.654 -46 39 31.14 – V C57
2018-09-09 09:14:41 s 1 +113286.12 4 +244770.95 0.23 – C57
2018-09-09 10:14:41 S 01 16 08.078 -46 38 33.29 – V C57
2018-09-09 10:14:41 s 1 +111444.59 5 +248146.09 0.87 – C57
2018-09-09 11:14:41 S 01 15 58.459 -46 37 32.63 – V C57
2018-09-09 11:14:41 s 1 +109579.82 1 +251468.64 0.815 – C57
2018-09-09 12:14:41 S 01 15 48.420 -46 36 44.14 – V C57
2018-09-09 12:14:41 s 1 +107692.65 7 +254738.98 0.607 – C57
2018-09-09 12:44:41 S 01 15 43.704 -46 36 11.56 – V C57
2018-09-09 12:44:41 s 1 +106740.93 8 +256354.67 0.734 – C57
2018-09-09 15:44:41 S 01 15 15.214 -46 33 17.03 – V C57
2018-09-09 15:44:41 s 1 +100922.93 4 +265778.99 7110.0 – C57
2018-09-09 16:14:41 S 01 15 10.838 -46 32 49.85 – V C57
2018-09-09 16:14:41 s 1 +99936.205 0 +267305.14 4770.0 – C57
2018-09-09 16:44:41 S 01 15 06.682 -46 32 25.08 – V C57
2018-09-09 16:44:41 s 1 +98944.847 0 +268818.67 5720.0 – C57
2018-09-09 17:14:41 S 01 15 01.042 -46 31 46.85 – V C57
2018-09-09 17:14:41 s 1 +97948.946 0 +270319.62 540.0 – C57
2018-09-09 18:14:41 S 01 14 52.186 -46 30 47.52 – V C57
2018-09-09 18:14:41 s 1 +95943.867 0 +273283.96 4000.0 – C57
2018-09-09 19:44:41 S 01 14 37.318 -46 29 19.36 – V C57
2018-09-09 19:44:41 s 1 +92904.316 0 +277637.19 1920.0 – C57
2018-09-09 21:14:41 S 01 14 23.402 -46 27 52.67 – V C57
2018-09-09 21:14:41 s 1 +89828.403 0 +281879.47 3830.0 – C57
2018-09-09 22:14:41 S 01 14 13.711 -46 26 48.16 – V C57
2018-09-09 22:14:41 s 1 +87758.640 0 +284646.57 780.0 – C57
2018-09-09 22:44:41 S 01 14 09.866 -46 26 24.18 – V C57